Contacts of the strand formed by residues 89 - 98 (chain C) in PDB entry 4ICX


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LYS 89 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66B  HIS*     6.0     3.1    -      -       +      +
     29C  VAL*     5.7     6.3    -      -       +      -
     31C  GLU*     2.9    35.1    +      -       -      -
     80C  PHE*     3.9    39.2    -      -       +      -
     81C  ALA      3.6     2.7    -      -       -      +
     82C  LEU*     3.7    24.5    -      -       +      -
     87C  SER      3.5     4.4    +      -       -      +
     88C  ALA*     1.3    74.1    -      -       -      +
     90C  GLU*     1.3    59.7    +      -       -      +
     91C  THR      4.1     1.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  ARG*     4.2    22.0    +      -       -      -
     26C  HIS*     5.7     1.4    +      -       -      -
     80C  PHE*     4.0     2.0    -      -       -      -
     81C  ALA*     2.8    45.8    +      -       +      +
     89C  LYS*     1.3    73.3    -      -       -      +
     91C  THR*     1.3    66.4    +      -       +      +
     92C  ILE*     3.3     2.8    +      -       -      +
    118C  LYS*     2.0    52.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with THR 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  GLN*     3.2    30.9    +      -       -      +
     80C  PHE*     3.7    25.7    -      -       -      -
     89C  LYS      4.1     1.4    +      -       -      -
     90C  GLU*     1.3    72.3    -      -       -      +
     92C  ILE*     1.3    63.2    +      -       -      +
     93C  GLY*     4.3     5.0    +      -       -      -
    118C  LYS*     3.9    14.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  PHE*     5.3     2.0    -      -       +      -
     23C  ARG*     4.6     2.2    -      -       -      +
     28C  LEU*     5.1     3.6    -      -       +      -
     79C  CYS*     2.9    22.6    +      -       +      +
     80C  PHE      4.3     1.1    -      -       -      -
     81C  ALA*     3.7    32.1    -      -       +      +
     90C  GLU*     4.0     3.4    -      -       -      +
     91C  THR*     1.3    74.0    -      -       -      +
     93C  GLY*     1.3    57.4    +      -       -      +
    114C  LEU*     4.3    16.8    -      -       +      -
    116C  SER      2.9    16.3    -      -       -      +
    117C  ASN*     3.6    12.7    -      -       -      +
    118C  LYS*     2.9    45.8    +      -       +      +
    119C  TYR*     3.4    46.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  GLN*     3.8     8.0    -      -       -      +
     79C  CYS      3.1    22.0    +      -       -      +
     91C  THR*     3.8     2.7    +      -       -      -
     92C  ILE*     1.3    82.2    -      -       -      +
     94C  TYR*     1.3    64.8    +      -       -      +
    114C  LEU*     3.7    13.6    -      -       -      +
    115C  LEU      3.3    13.7    -      -       -      -
    116C  SER*     3.6     6.3    -      -       -      -
    117C  ASN*     4.6     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76C  LYS*     4.0    35.0    -      -       +      -
     77C  LEU      3.3    12.1    -      -       -      +
     78C  GLN*     4.4     9.0    -      -       +      -
     93C  GLY*     1.3    74.9    -      -       -      +
     95C  ILE*     1.3    67.1    -      -       -      +
     96C  VAL*     4.6    11.7    -      -       +      -
    114C  LEU*     3.6     5.3    -      -       -      +
    115C  LEU*     2.9    71.5    +      -       +      +
    116C  SER*     3.6    24.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  ILE      3.7     0.3    -      -       -      +
     76C  LYS*     3.7     2.1    -      -       -      +
     77C  LEU*     2.8    60.2    +      -       +      +
     94C  TYR*     1.3    79.0    -      -       -      +
     96C  VAL*     1.3    64.3    +      -       -      +
     97C  LEU*     4.0     8.1    -      -       +      -
    112C  TYR*     3.6    42.8    -      -       +      +
    113C  GLN      3.7    17.9    -      -       -      +
    114C  LEU*     4.1    12.3    -      -       +      +
    115C  LEU*     5.5     1.3    -      -       -      -
    126C  ILE*     3.7    31.2    -      -       +      -
    128C  ILE*     3.9    14.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  PRO*     3.7    29.6    -      -       +      -
     75C  ILE      3.5     4.5    -      -       -      +
     76C  LYS*     4.7     4.7    -      -       +      +
     94C  TYR*     4.6    13.7    -      -       +      -
     95C  ILE*     1.3    78.3    -      -       -      +
     97C  LEU*     1.3    72.0    +      -       -      +
     98C  ASP*     5.5     4.0    -      -       -      +
    112C  TYR*     4.6     6.1    -      -       -      -
    115C  LEU*     4.4    21.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  VAL*     4.1    20.4    -      -       +      -
     74C  PRO*     3.5     7.3    -      -       -      +
     75C  ILE*     2.8    48.2    +      -       +      +
     77C  LEU*     3.8    26.9    -      -       +      -
     95C  ILE*     4.0     8.7    -      -       +      -
     96C  VAL*     1.3    75.3    -      -       -      +
     98C  ASP*     1.3    66.6    +      -       -      +
    112C  TYR*     3.5    48.9    -      -       +      +
    128C  ILE*     3.9    17.5    -      -       +      -
    130C  ILE*     5.0    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  ARG*     3.0    69.3    +      -       -      +
     73C  THR      3.6     4.1    -      -       -      +
     74C  PRO*     4.1     1.7    -      -       -      +
     75C  ILE*     5.4     1.1    -      -       -      -
     96C  VAL*     5.5     3.6    -      -       -      +
     97C  LEU*     1.3    80.7    -      -       -      +
     99C  LEU*     1.3    61.6    +      -       -      +
    100C  ARG*     3.2    15.0    +      -       +      +
    101C  THR*     3.9    12.3    +      -       -      -
    130C  ILE*     4.4    13.6    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il